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Kurt


Last seen: 3 dagen ago |  Active since 2022

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Upper limit on the number of UIAxes children allowed
I am plotting orbital data, using plot3 to progressively lengthen the orbital track of a spacecraft. plot3(earthMoon.UIAxes, x...

ongeveer een maand ago | 2 answers | 0

2

answers

Question


How to draw 2d compass in 3d UIAxes
Is it possible to use the compass() function to draw a compass rose in a UIAxes object? I don't care about the function depicted...

8 maanden ago | 1 answer | 0

1

answer

Question


angle2dcm: How to reference direction cosine matrix output?
I have seen lots of discussion on how to call angle2dcm, but almost none on how to use it to transform the coordinates of an obj...

8 maanden ago | 1 answer | 0

1

answer

Question


App Designer: How to add components that are not listed in the library
The App Designer Component Library contains a limited number of components to drag and drop. There are many more components and ...

9 maanden ago | 1 answer | 0

1

answer

Answered
Matlab return C call by reference
The solution was to first load my Dynamic Link Libraries (DLLs). Then the Matlab calls to my library functions look like this:...

9 maanden ago | 0

| accepted

Question


Matlab return C call by reference
I am using a compiled C DLL library to compute various astronomical functions, for example time since epoch and ra/dec to az/el ...

10 maanden ago | 1 answer | 0

1

answer

Answered
Call parfeval using global variables?
Using a combination of spmd and spmdIndex (NOT labIndex, which is obsolete), I was able to achieve what I wanted: setting the DO...

10 maanden ago | 0

| accepted

Question


Call parfeval using global variables?
I am using parfeval() to do multithread logic. I have 16 cores. The documention mentions listing the calling parameters as argum...

10 maanden ago | 2 answers | 0

2

answers

Answered
Click on row in TextArea?
The "compose" approach reduced the formatting from about 7 minutess to 10 seconds. Thanks! I solved the TextArea size issue by ...

11 maanden ago | 0

| accepted

Question


Click on row in TextArea?
I have a GUI that contains a TextArea. I read in a file that is 20,000 x 16 and convert each row to a string, so the resulting t...

11 maanden ago | 2 answers | 0

2

answers

Question


How to draw lines in UIFigure designed in App Designer that contains an image
I have seen many examples of how to draw a line in a plot; however, I am working with an App Designer object-oriented UIFigure. ...

12 maanden ago | 1 answer | 0

1

answer

Question


Observation: sortrows() blows up when attempting to sort empty cells
This is more of an observation than a question, but it took me two days to figure it out. I am pre-allocating space for an arra...

12 maanden ago | 1 answer | 0

1

answer

Question


How to do math using datetime objects including years
I want to compute the number of days, minutes and seconds since January 1st, 2000 (Julian days) up to a specific date such as Ju...

ongeveer een jaar ago | 3 answers | 0

3

answers

Question


How to initialize a table column to a character array?
I have a table "filetext" which is 19343x46. I want to append a colum on the right containing the character array 'MET'. In othe...

ongeveer een jaar ago | 1 answer | 0

1

answer

Answered
GUI loses state when destroyed and recreated
Found the solution. Change the GUI callback function to read as follows: function GUIButtonGroupSelectionChanged(app, event) % ...

ongeveer een jaar ago | 0

Question


GUI loses state when destroyed and recreated
This USED to work several days ago, but somehow I broke it. I have a GUI which I created in App Designer. The GUI is called fro...

ongeveer een jaar ago | 1 answer | 0

1

answer

Question


How to convert datetime to datestr including day of year
I can convert a date string to a datetime object using datetime(), and convert that object back to a string using datestr(). How...

ongeveer een jaar ago | 1 answer | 0

1

answer

Question


How do I add a draw rectangle function to an image app?
I used App Designer to create a frame containing an image. Now I want to draw a rectangle inside that image. None of the example...

ongeveer een jaar ago | 1 answer | 0

1

answer

Answered
How do I use uiopen in a class method?
Solution found: I needed a callback function.

ongeveer een jaar ago | 0

| accepted

Question


How do I use uiopen in a class method?
I am new to Matlab, and trying to build a GUI. In App Designer, I dragged a Menubar to the window and copied the class definitio...

ongeveer een jaar ago | 1 answer | 0

1

answer